To enable parallel build for F# projects in Visual Studio 2013, add a string parameter named IsMultiThreadedBuildEnabled
with value 1
into key HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0_Config\Projects\{f2a71f9b-5d33-465a-a702-920d77279786}
(replace 12.0_Config
with 14.0_Config
for VS 2015)
Note: At some point this setting may disappear, it seems Visual Studio may erase it. So, you should check whether it's there before run VS.
Attach this reg-file